Prosoft-technology MVI56E-MCMR Manual de usuario descargar pdf (Pagina 63)

MVI56E-MCMR ♦ ControlLogix Platform Configuring the MVI56E-MCMR Module

Modbus Communication Module with Reduced Data Block User Manual

ProSoft Technology, Inc. Page 63 of 225

May 13, 2014

Parameter

Description

MB Address in Device

Specifies the starting Modbus bit or register address where data will

begin being read from or written to the slave device. With Modbus, to

read an address of 40001, what will actually be transmitted out port is

Function Code 03 (one byte) with an address of 00 00 (two bytes).

This means that to read an address of 40501, use FC 3 with a MB

Address in Device of 500.

This applies to all Modbus addresses. Below are some examples that

will help with your MB ADDRESS IN DEVICE configuration:

Function Codes 1, 5, or 15 for reading or writing Modbus Coils

MB Address in Device setting = Modbus Coil address in the Slave

device – 0001

For Modbus Coil address 0001: MB Address in Device = 0

For Modbus Coil address 1378: MB Address in Device = 1377

Function Code 2

MB Address in Device setting = Modbus Input Status address in the

Slave device - 10001

For Modbus address 10001: MB Address in Device = 0

For Modbus Input Status address 10345: MB Address in Device =

344

Function Codes 3, 6, or 16

MB Address in Device setting = Modbus Holding Register address in

the Slave device – 40001

For Modbus Holding Register address 40001; MB Address in Device

= 0

For Modbus Holding Register address 40591; MB Address in Device

= 590

Function Code 4

MB Address in Device setting = Modbus Input Register address in the

Slave device – 30001

For Modbus Input Register address 30001: MB Address in Device = 0

For Modbus Input Register address 34290; MB Address in Device =

4289

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 224 225

Sin comentarios

Prosoft-technology MVI56E-MCMR Manual de usuario Pagina 63